There’s nothing stock in mine with exception of the modified filter head. If I could figure a way of putting. a different tube and fitting in the center, I would. However, I’m thinking it may not be necessary especially when considering the flow direction (smaller into larger).

I just meant generally speaking. Btw I just went up and looked at my remote housings and believe them to be stock for 525’s etc etc. They are 06883’s??? Just questioning if they would be an issue or not. Will be turning 6,300. Don’t mean to hijack your thread btw.

No worries at all sir! This helps everyone.

I wonder is this would work in the MPI oil filter head?

https://www.mercruiserparts.com/bam/...1345/10127/190

Ref # 4 - 22-806328 - Fitting

i didn’t measure the housing however noticeable difference btwn the housing and block adapter.

Never mind. It's the same part as used on the 502 MPI.

How is that one mounted?

On the heads. I just had them so thought I’d use them but now I’m questioning. Do I hog out, buy new high flow or am I over thinking. 😂

I thought the oil stat coolers were 1/2 but there 3/4. I may have just answered my own question unless I hear otherwise. Running 12 AN hose throughout. Not that I need it however just figure any extra oil I can have the better but it’s for 565’s pretty much maxed out for NA anyway.

Obviously all 3 of us are overthinking this, I see the extra strength Excendrin in your picture....